CN112064507B - Vertical impact buffering device - Google Patents

Abstract

The invention relates to the technical field of vibration damping and buffering, and specifically discloses a vertical impact buffering device. The vertical buffer device includes: a plate spring, which is arc-shaped and has two free ends, each of the free ends is provided with at least one pulley; and also includes a slideway, which extends along the plate spring The direction is arranged and matched with the pulley, so that the pulleys of the two free ends can slide on the slide; it also includes a damper, the two ends of which are respectively connected to the two free ends of the plate spring for providing damping The plate spring is resisted by compression and elongation. It can solve the problem in the prior art that when erecting steel beams, the steel beams or bridge piers may be greatly damaged due to the impact effect, and the impact effect affects the construction safety, resulting in greater safety hazards. The use of the device can make the impact effect The object can land quickly and safely, which can improve the construction efficiency.

Description

A vertical shock buffer device

technical field

The invention relates to the technical field of vibration damping and buffering, in particular to a vertical impact buffering device.

Background technique

Impact and collision problems are widely encountered in the process of bridge engineering construction. For example, in large-scale hoisting construction, the impact and collision between the hoisting weight and the working platform often occurs, especially during the construction of cross-sea bridges.

In order to minimize the offshore operation time, the simply supported steel beams are generally prefabricated and assembled in the factory, and the whole holes are erected by floating cranes at the bridge position. In the process of erecting steel beams, affected by the complex marine environment (wind, waves, currents) at the bridge site of the cross-sea bridge, when the steel beams fall off the beams, a large vertical impact will be produced on the piers.

Due to the relatively large quality of steel beams and significant impact, it may cause greater damage to steel beams or piers, and at the same time, the impact will affect construction safety. The beams are often dropped very carefully to avoid collisions, but this will seriously affect the construction efficiency.

SUMMARY OF THE INVENTION

In view of the defects existing in the prior art, the purpose of the present invention is to provide a vertical impact buffer device, which can solve the problem that when erecting steel beams in the prior art, the impact action may cause greater damage to the steel beams or bridge piers. At the same time, the impact effect affects the construction safety, resulting in a larger safety hazard.

In order to achieve the above purpose, the technical scheme adopted in the present invention is:

The present invention provides a vertical shock buffering device, which is characterized by comprising:

a leaf spring, which is arc-shaped and has two free ends, each of which is provided with at least one pulley;

a slideway, which is arranged along the elongation direction of the plate spring and is matched with the pulley, so that the two pulleys at the free ends can slide on the slideway;

The damper, the two ends of which are respectively connected to the two free ends of the plate spring, is used to provide resistance for restraining the plate spring from being compressed and elongated.

On the basis of the above technical solution, an adjusting device is also included, which is connected to the two free ends of the plate spring, and is used to adjust the initial arc of the plate spring.

On the basis of the above technical solution, the adjusting device includes:

Adjusting rod, the length of which can be adjusted;

Two springs are respectively arranged on both sides of the adjusting rod and are connected with the two free ends.

On the basis of the above technical solution, the two ends of the slideway are further provided with limiters, which are used to limit the maximum length of the plate spring under compression.

On the basis of the above technical solution, a limit frame is also included, which is sleeved on the outer side of the plate spring, and the height of the limit frame is smaller than the height of the plate spring.

On the basis of the above technical solutions, the limiting frame is a cuboid frame.

On the basis of the above technical solutions, the limit frame is a cuboid frame composed of 12 connecting rods, and the slideway is clamped in the connecting rods on one side of the limit frame that are opposite to each other.

On the basis of the above technical solutions, the cuboid frame is made of rigid material.

On the basis of the above technical solutions, each of the free ends is provided with two pulleys at intervals, the slideway includes two slide rails, and the slide rails are arranged along the extension direction of the plate spring to match the pulleys.

On the basis of the above technical solution, the damper is a displacement-dependent or velocity-dependent damper.

Compared with the prior art, the present invention has the advantage that: when in use, the vertical impact buffer device is arranged between the impact object and the impact platform, and when the impact object falls, it first contacts the plate spring, and with the impact The impact of the object is pressed down, the radian of the plate spring becomes larger, the pulley below it slides on the slideway, and the elasticity of the plate spring realizes the buffer function of the buffer. Drive the damper to work, realize the energy dissipation function of the buffer, absorb the energy of the impact object, and make the impact object land quickly and safely. When erecting steel beams, due to the large mass and impact, the steel beams or bridge piers may be greatly damaged, and the impact effect will affect the construction safety and cause greater safety hazards. The use of this device can make the impact The object can land quickly and safely, which can improve the construction efficiency.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a vertical shock buffer device in an embodiment of the present invention.

In the figure: 1, plate spring; 11, pulley; 2, slideway; 21, slide rail; 3, damper; 4, adjusting device; 41, adjusting rod; 42, spring; 5, limit frame; 51, Connecting rod.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a vertical shock buffer device in an embodiment of the present invention. As shown in Figure 1, the present invention provides a vertical shock buffer device, comprising:

The plate spring 1 is arc-shaped and has two free ends, each free end is provided with at least one pulley 11; the slideway 2, which is arranged along the extension direction of the plate spring 1 and matched with the pulley 11, can make the two The pulleys 11 with two free ends slide on the slideway 2 ; the damper 3 , the two ends of which are respectively connected to the two free ends of the plate spring 1 , are used to provide resistance to restrain the plate spring 1 from being compressed and elongated.

When in use, the vertical impact buffer device is arranged between the impact object and the impact platform. When the impact object falls, it first comes into contact with the plate spring 1. As the impact object is pressed down, the radian of the plate spring 1 changes. The pulley 11 below it slides on the slideway 2, the elasticity of the plate spring 1 realizes the buffering function of the buffer, after the vertical impact is converted into a lateral impact, at the same time, the deformation of the plate spring 1 drives the damper 3 to work, Realize the energy dissipation function of the buffer, absorb the energy of the impact object, and make the impact object land quickly and safely. When erecting steel beams, the impact may cause greater damage to the steel beams or piers, and at the same time the impact affects construction safety, resulting in greater safety hazards. Can improve construction efficiency.

In some optional embodiments, the vertical shock buffering device further includes an adjusting device 4 , which is connected to the two free ends of the leaf spring 1 , and is used to adjust the initial arc of the leaf spring 1 when it works.

In this embodiment, the radian of the plate spring 1 can be adjusted by tightening or loosening the adjusting device 4, so as to realize the adjustment of the stiffness of the buffer device, so that it can be applied in a wider range.

In some optional embodiments, the adjusting device 4 includes: an adjusting rod 41 whose length is adjustable; and two springs 42 , which are respectively disposed on both sides of the adjusting rod 41 and are connected with the two free ends.

In this embodiment, when the stiffness of the entire buffer device is required, it can be achieved by adjusting the adjustment rod 41 . Specifically, the stiffness of the buffer device is reduced by extending the length of the adjusting rod 41 , and the stiffness of the buffer device is increased by reducing the length of the adjusting rod 41 . In addition, the springs 42 on both sides of the adjusting rod 41 can also buffer and absorb the energy of the impact object.

In some optional embodiments, the two ends of the slideway 2 are further provided with limiters, which are used to limit the maximum length of the plate spring 1 to be stretched under compression.

In this embodiment, the two ends of the slideway 2 are further provided with limiters to limit the maximum length of the plate spring 1 to be stretched under compression. Such a design can prevent the leaf spring 1 from exceeding its elastic deformation range, resulting in the irreversible loss of the leaf spring 1 .

In some optional embodiments, a limit frame 5 is also included, which is sleeved on the outer side of the leaf spring 1 , and the height of the limit frame 5 is smaller than the height of the leaf spring 1 .

In this embodiment, a limit frame 5 sleeved on the outside of the plate spring 1 is provided, and the limit frame 5 is higher than the plate spring 1, which can ensure that the impact force on the plate spring 1 is greater than that of the entire buffer device When the bearing range is limited, the limit frame 5 is used to support, so as to prevent the plate spring 1 from exceeding its elastic deformation range, which will cause the plate spring 1 to be crushed and cause inelastic deformation.

In some optional embodiments, the limiting frame 5 is a rectangular parallelepiped frame. The cuboid frame has a simple structure and a simple manufacturing process, and can avoid the problem of crushing the plate spring 1 and causing inelastic deformation.

In some optional embodiments, the limiter 5 is a cuboid frame composed of 12 connecting rods 51 , and the slideway 2 is clamped in the connecting rods 51 on one side of the limiter 5 that are opposite to each other.

In this embodiment, the slideway 2 is clamped in the connecting rod 51 on one side of the limiter 5 which is opposite to each other, which can limit the position of the pulley 11 , that is, limit the maximum extension length of the plate spring 1 .

In some alternative embodiments, the cuboid frame is made of rigid material. In this embodiment, the cuboid frame is made of rigid material and can withstand a certain impact force. In other embodiments, an elastic material can also be used, the height of which is greater than the height of the plate spring 1 after the ultimate extension. When the plate spring 1 is stretched to bear the impact, it will bear the impact together with the plate spring 1, which can play a role in buffering effect.

In some optional embodiments, each free end is provided with two pulleys 11 at intervals, the slideway 2 includes two slide rails 21 , and the slide rails 21 are arranged along the extension direction of the leaf spring 1 to match the pulleys 11 . In this embodiment, two slide rails 21 are provided, so that the plate spring 1 can be more stable, and other auxiliary stabilization devices are not required. Of course, in other embodiments, more slide rails 21 may also be used. A slide rail 21 can also be used, equipped with other auxiliary stabilization devices, and the same effect can also be achieved.

In some optional embodiments, the damper 3 is a displacement-dependent or velocity-dependent damper. The displacement-dependent or velocity-dependent damper can quickly absorb the lateral impact force converted from the vertical impact force borne by the leaf spring 1 .

In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the application and simplifying the description, Rather than indicating or implying that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, it should not be construed as a limitation on the application. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply Any such actual relationship or sequence exists between these entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above descriptions are only specific embodiments of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, this application is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims (6)

1. A vertical impact cushioning device, comprising:

a plate-shaped spring (1) which is arc-shaped and has two free ends, each of which is provided with at least one pulley (11);

a slideway (2) which is arranged along the extension direction of the plate-shaped spring (1) and matched with the pulleys (11) and can enable the pulleys (11) at the two free ends to slide on the slideway (2);

a damper (3) with two ends respectively connected with two free ends of the plate-shaped spring (1) and used for providing resistance for inhibiting the plate-shaped spring (1) from being compressed and stretched;

the adjusting device (4) is connected with two free ends of the plate-shaped spring (1) and is used for adjusting the initial working radian of the plate-shaped spring (1);

an adjusting rod (41) with adjustable length;

two springs (42) respectively arranged at two sides of the adjusting rod (41) and connected with the two free ends;

the limiting frame (5) is sleeved on the outer side of the plate-shaped spring (1), and the height of the limiting frame (5) is smaller than that of the plate-shaped spring (1); the limiting frame (5) is a cuboid frame.

2. A vertical shock absorbing device as claimed in claim 1, wherein: and limiting parts are further arranged at two ends of the slide way (2) and used for limiting the maximum length of the plate-shaped spring (1) in a pressed and extended mode.

3. A vertical shock absorbing device as claimed in claim 1, wherein: spacing (5) are the cuboid frame of constituteing by 12 connecting rods (51), slide (2) card is established spacing (5) are located one side and relative connecting rod (51).

4. A vertical shock absorbing device as claimed in claim 1, wherein: the cuboid frame is a rigid material part.

5. A vertical shock absorbing device as claimed in claim 1, wherein: every the free end interval is equipped with two pulley (11), slide (2) include two slide rail (21), slide rail (21) are followed plate spring (1) extension direction matches pulley (11) set up.

6. A vertical shock absorbing device as claimed in claim 1, wherein: the damper (3) is a displacement-dependent or velocity-dependent damper.

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